Message ID | 20210116214705.822267-19-vsementsov@virtuozzo.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Sat, 16 Jan 2021 21:47:58 +0000 From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> To: qemu-block@nongnu.org Subject: [PATCH v4 18/23] qapi: backup: disable copy_range by default Date: Sun, 17 Jan 2021 00:47:00 +0300 Message-Id: <20210116214705.822267-19-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210116214705.822267-1-vsementsov@virtuozzo.com> References: <20210116214705.822267-1-vsementsov@virtuozzo.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [185.215.60.72] X-ClientProxiedBy: AM4PR0701CA0005.eurprd07.prod.outlook.com (2603:10a6:200:42::15) To AM7PR08MB5494.eurprd08.prod.outlook.com (2603:10a6:20b:dc::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from kvm.sw.ru (185.215.60.72) by AM4PR0701CA0005.eurprd07.prod.outlook.com (2603:10a6:200:42::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3784.6 via Frontend Transport; Sat, 16 Jan 2021 21:47:58 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: d855c77a-7b5d-4171-318a-08d8ba6863c4 X-MS-TrafficTypeDiagnostic: AM6PR08MB3542: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: <AM6PR08MB3542C61E04E8604EC82CD328C1A60@AM6PR08MB3542.eurprd08.prod.outlook.com> X-MS-Oob-TLC-OOBClassifiers: OLM:1360; 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Series |
backup performance: block_status + async
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expand
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diff --git a/qapi/block-core.json b/qapi/block-core.json index c0e9d119d2..933c2327c8 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -1377,7 +1377,7 @@ # Optional parameters for backup. These parameters don't affect # functionality, but may significantly affect performance. # -# @use-copy-range: Use copy offloading. Default true. +# @use-copy-range: Use copy offloading. Default false. # # @max-workers: Maximum number of parallel requests for the sustained background # copying process. Doesn't influence copy-before-write operations. diff --git a/blockdev.c b/blockdev.c index 6db433cef8..41d1431210 100644 --- a/blockdev.c +++ b/blockdev.c @@ -2794,7 +2794,7 @@ static BlockJob *do_backup_common(BackupCommon *backup, { BlockJob *job = NULL; BdrvDirtyBitmap *bmap = NULL; - BackupPerf perf = { .use_copy_range = true, .max_workers = 64 }; + BackupPerf perf = { .max_workers = 64 }; int job_flags = JOB_DEFAULT; if (!backup->has_speed) {